Stop motion for carding machines



J. BSANTQS STOP MOTION FOR CARDING MACHINES Oct. 27,1925

3 Sheets-Sheet 1 Filed Jan. 6. 1923 l-lll Obie 27,1925- 1,559,282

. .1. BSANTOS STOP MOTION FOR CARDING MACHINES Filed Jan. 6. 192: 3 Shets-Sheet 2 Oct. 27, 1925- 1,559,282 I J. B. SANTOS STOP MOTION FOR GARDING MACHINES Filed Jan. .6. 192: as sneaks-sheet 5 Patented Get. 2?. 1925.

UNITED STATES 1,559,282 PATENT OFFICE.

JOHN B. SANTOS, 01 NEW BEDFORD, MASSACHUSETTS, ASSIGNOR OF ONE-HALF. TO WILLIAM MARTIN, OF NEW BEZDZEORD, MASSACHUSETTS.

s'ror MOTION F03 GARDING MACHINES.

Application filed January To (ZZZ whomit" mag/ con n: I

Be it known that I, JoI-I'N B. SAN'ros, a citizen of the Republic of Portugal, residing; at New Redford, in the county of Bristol, State of hl'iassachnsetts, have invented certain new and useful Improvements in Stop Motions for (m-ding Machines of which the follo ing is a specification.

My invention relates to stop motions for car'ling machines, and provides means which function when the sliver that passes between the calender rolls is either absent or below gage, a lowering of the top calender roll of a carding machine releasing acatch thereby allowing spring actuated means to act and render idle the doffer drive and other parts of the carding machine.

The object of my invention is to provide an automatic stop motion for carding machines and to embody therewith operator operated means for stopping the carding machine when desired, the automatic action being effected by the lowering of the top calender roll.

A further object of my invention is to provide an automatic stop motion for the drives of carding machines of such design and construction that the same may be readily attached to standard types of carding ma chines.

A further object of my invention is to providemeans for-lifting, the upper or sliver supported calender roll, such means being associated with stop motion for use in threading the sliver between the calender r'olls, prior to resetting the stop motion and placing the doffer drive gear inoperative position.

The means for attaining the foregoing objects comprises a calender roll actuated unit which is operatively connected with spring actuated'lever moving means which when actuated moves a lever or barrow bar in position to place the dofl'er drive of a carding machine in idleposition. as will be hereinafter set forth and pointed out in the claims.

The accompanying drawings illustrate a preferred form of my invention and show the same applied to a well known type of carding machine. Figure 1 is aside elevation viewed from theright hand side of a carding; machine. Fig. 2 is a side elevation viewed from theleft hand side of a carding machine, a part being broken away to show 6, 1923. Serial No 611,098.

the barrow bar, this view also showing the position of the hand levers of the stop mo tion. Fig. 3 is a front end elevation showing the position of the parts of the stop motion as appliedio a carding machine. Fig. 4 is a top view of the front portion of a carding machine with my invention applied thereto. F ig. 5 is a perspective view of my stop motion, one of the unitsthereof being in position to raise a hand lever to effect stoppage of the carding machine when the top calender roll drops below normal position. Fig. 6 is a perspective view of a unit of the stop motion, in which view acatch thereof has been released, the lever lifter being raised to permit the barrow bar to drop to move the gear carried thereby out of mesh with the gear of the doffer roll to effect stoppage thereof. Figs. 7 and S are side elevations showing the lifter for the top calender roll in different positions. Fig. 9 is a perspective view of the top calender roll lifting member and the disk to which it is attached. Fig. 10 is a front elevation of the calenderroll lifter, including a disk to which it is attached and an arm for moving the disk and its lifter. Fig. 11 is a detail view of the lower portion of a vertically movable trip bar. the support therefor be ing in section. Fig. 12 is a detail view partly in section, and Fig. 13 is a side elevation of the catch of the stop motion which is actuated by the lowering of the upper calender r011,

Figures 1, 2, 3 and 4 of the drawings illustrate my. invention as it is connected with a carding machine of known construct-ion. such views of the drawings being intended to show the application of my stop motion thereto.- 7

The top calender or condenser roll 20, of the carding machine, is vertically movable and rotative between side pieces of rollsupports, the lower roll 21 is also located be tween the rollsupports and its shaft which passes through the roll supports has beyond the side frames of the. carding machine a gear 23 that is driven by a gear 22 that is connected with the barrow bar 23'.

The barrow bar 23' may be raised and lowered by a hand lever 24 thatis journaled upon a stud shaft 56, the hand lever 24 is provided with a cam for engagement with the free end of the barrow bar to hold when the lever 24; is depressed the end of the bar row bar raised to hold the gear 22 in engagement with the gear of the dotl er roll which drives by means of other gears the gear 21, as shown by Fig. 2. The barrow bar, vertically movable gear and the hand lever 24 having a cam are no part of my in vention, they being used as manually operated stop motions for carding machines.

The parts of my improved stop motion are associated with the front portion of the carding machine by being bolted or otherwise connected thereto, the calender roll trip member being adjacent to one of the supports for the calender roll 20.

The member 25 of the stop motion is tubular and its lower end is closed except for an aperture through which passes the re duced stem of a trip member 30, the stem being partially encircled by a coiled spring 29 which tends to hold the trip member in an elevated position, the member 25 is provided adjacent to its upper end with an apertured lug 26 through which a bolt is passed to attach the member 25 to the frameof the carding machine. The member 25 has adjacent to its lower end and on the opposite side from the attaching lug 26 an apertured and vertically slotted lug 27, to which is pivotally connected an angular or bell-crank lever 28, one arm thereof having a projecting portion that lies in the slot and oscillates upon a pin carried by the slotted lug 27. The trip member 30 is normally held in a raised position by the spring 29, a part of the member being within its carrier 25 and a shoulder limits in one direction movement of the trip member. The trip member beyond the shoulder is flattened, the flattened portion being bent to offset its upper end which is slightly concaved for engagement with a reduced end portion 33, of the top calender roll 20.

The member 25, on the side opposite the lug 26, has secured thereto an upstanding flat bar 32 the same having offsetting bends and to the vertical upper end of the bar a disk 33 is attached, a stud carried by the disk being journaled in an aperture through the upper portion of bar 32, a lever 34 is secured to the stud to provide manually operated means for raising and lowering the top calender roll. The disk 33 has pivotally attached thereto a member 36 having a bifurcated upper end providing a fork to receive an end pintle 37 of the top calender roll 20. The lever 34 has an inturned portion or projection which overlies the margin of the disk 33 and serves as a stop for the lever or handle 34, by engaging an edge of the bar 32 when the top calender roll is raised by upward movement of bar 36. The bar 32 has attached thereto a block or guide member 39, which bears against a flat vertical face of the member 30 to prevent turningthereof and the withrssaasa drawal of member 30 from its support, by

engagement with shoulder 011 the member 30. The hand lever 34 and member 36 provide means for lifting the top calender roll when desired to pass sliver between the calender rolls. The lower end of the trip bar 30 rests upon one end of the angular lever 28, the other end of said lever having an appropriate coupling pivoted thereto the coupling being engaged by one end of a rod 31, the other end of the rod being bent to provide a hook for engagement with a rockbar as shown.

A part of the stop motion indicated generally by 40, Figs. 5 and 6 of the drawings, comprises a bar 41 which is shaped to provide an offset upper end portion having an aperture therethrough for the passage of a bolt which attaches the bar to the frame of the carding machine, the horizontal portion of the bar being apertured for the passage and attachment of hangers 42 and 43. The vertically depending portion of the bar 41 is provided adjacent to its lower end with a slot 44 and above the slot there is an eye 45 which is engaged by the upper end of a coiled spring 52, the lower end of the spring engaging a guide or keeper which is attached to the upper end of a. vertically slidable bar 51, by means of a catch 49. The catch 49 is of angular formation and has shoulders which overlie the bar 41, adjacent to the slot 44, the catch also has a rectangular portion for contact with the sides of the slot and a stem with a threaded end to receive a washer and nut, the catch and keeper hold the bars 41 and 51 in slidable engagement and the spring 52 tends to pull the bar 51 upward. The lower end of the slidable bar 51 has secured thereto a laterally projecting member 53 which has an upstanding lug to which is pivoted one end of a link 54, the opposite end of said link being pivoted to a lever 55 which has an upward extending end portion to which is attached a stub shaft or journal 56, said journal being seated in a journal box carried by the main frame of the carding machine. The journal 56 also carries the stop lever 24, which when depressed holds the cam formed thereon in contactv with the barrow bar to place the gear 22 in contact with the gear of the dofl er roll, the stop lever has its grasping end positioned above the laterally projecting member 53, so that the operation or upward movement of the slidable bar 51 ment with the slidable bar 51 and the keeper 50, is adapted to engage with a detent 48.

excessive oscillation thereof by engagement with'the flat vert cal'sideot the vertically movable catch; The hanger-42 maintains a ro'clrbart6, the upper end thereof being connectecl'to'the rod 31, and the lower end of the roclr bar is conneetedby alink d7 with the upper end of the'detent 41-8.

Iii'o'peratimiwhen it is desired to manually raise the" top calender roll, as for, pass"- ing sliver between the rolls, the handleven is moved to a position as shown by Fig. 8 after which insertion of the sliver the lever is returned to normal position as To set the stop motion shownfby'- Fig; 5. I I eitherthe usual hand lever Qdor the lever is depressed by manual actuation, which d epres ses the-slide bar 51 so that thesprin 52" will exert an" upwara pull on the bar and the deten't 481 The" member 30i's spring pressedagainsta reduced portion of the top calender roll 20, when sliver of the proper gage is passing between the calender rolls, when the gage of the sliver falls below standard the weight of the top calender roll will actuate the bent lever 28 so that said lever will exert a pull upon the rod 31 to actuate the detent and release the catch 49, which permits upward movement of the sliding bar 51, the lateral extension 53 carried by the bar, engages the under side of the lever 24 and moves the same to position which will permit the barrow bar to drop and allow the pinion 22 to become disengaged from the gear of the dotfer roll.

I claim.

1. A stop motion for carding machines controlled to effect stoppage of the drive thereof by the lowering of the top calender roll of the carding machine, comprising a slidable member having an end portion that is maintained below the axis of the top calender roll, means actuated by the movement of said slidable member to release a catch, and means operating upon the release of the catch to change the position of a lever en gaging member which results in placing out 01 gear a power transmission pinion that is movable with a barrow bar of the carding machine.

2, In a stop motion for carding machines having a doiler roll; a lever for moving a gear in and out of engagement with a gear on the dofter roll; a hand lever that engages the first mentioned lever for manually controlling its position and the drive of the doiter roll, an automatic stop motion which includes a vertically movable member positioned and maintained to be depressed by The straight edge of the detent 48 will prevent otthe carding machine, and leveractuating means that is released by the depression of the vertically movable member.

A stop motion for carding machines whichiseperated by a lowering'ot the top calender roll thereof, the same comprising a vertically niovable'bar the upper end thereof beingmaintained below and in the path'ot theax'is of the top calender roll,- a'support tor the vertically movable bar, a lever pivoted to the supports-aid lever having one end positioned to'be engaged by the vertically n'io'valilebar, a rod attached to said lever, in combination with a springactuatcd member positioned forengagen'ient with a gear shitting lever and a" catch actuated by therod.

4. A stop motion for c* ng machines comprisingmovable means lor releasing a latch actuated by the lowering" of the top calender roll, spring actuated slidable frame having a'deten't' toreng'agement with thela'tch, a lever-associatedwith the frame 0t thecarding macliine for moving the'slicl able frame" in'to 'position'to' be engaged by the latch; aba'r'i'ow bar, and -aleverifor'engage ment with the barrow bar and with the slidable frame.

5. In a stop motion for carding machines, a member comprising a bar for attachment to the frame of a carding machine, a member maintained in slidable engagement with said bar, a spring for actuating said slidable member in one direction, a laterally extending lever tripping bar attached to said slidable member, a lever for placing the slidable member under spring tension, a latch on one of the members for engagement with a catch on the other member and means for operatively associating the latch and catch so that the lever tripping bar will be actuated by the lowering of the top calender roll of the carding machine below its normal operating position.

6. A stop motion for carding machines comprising a vertically movable and spring maintained member which is depressed by downward movement of the top calender roll of the carding machine beyond normal operating position, means associated and actuated by said vertically movable member to release a spring actuated movable bar which on its upward movementengages and moves a stop lever to etl'ect the placing of a gear out of engagement with a gear on the doii'er roll of the carding machine.

7. A stop motion for carding machines having a barrow bar, a dofi'er roll gear actuated by a gear that is movable with the barrow bar, a lever having a cam end for engagement with one end of the barrow bar to hold the gear that is movable therewith in engagement with the gear of the dofi'er roll, a frame having an Offset vertical portion, a

vertically movable is: 1 s

slot tl'irough said portion, means for connecting one end of a spring adjacent to the offset portion of the frame, depending lever and catch supports associated with the said offset portion, a vertically slidable member to which the spring is attached, a guide, a catch engaging member for engagement with a catch that is pivoted to one of the supports, a link connecting the catch with a lever tulcrumed upon the other support, a trip bar that projects laterally from the slidable member for engagement with the lever having a cam for engagement with the barrow bar, a hand lever associated with the laterally projecting trip bar, and means for moving the catch to effect release and upward movement of the trip bar.

8. In combination with a carding machine provided with a lever that is associated with a gear that constitutes an element of the drive for the dofler roll and a hand lever that engages with the first mentioned lever of a spring actuated slidable bar provided with a lateral projecting portion for contact with the hand lever, a support for the slidable bar, a catch, a link and a lever carried by the support, a projection connected to ward movement, a rod connected to the link a and to a lever, and means for actuating the lever controlled by downward movement of the top calender roll beyond its normal operative position.

9. The combination in an automatic stop motion for carding machines which is operative when the top calender roll of the carding machine drops below its normal operative position, of a manually actuated top calender roll litter comprising a bar having a recessed upper end for engagement with a projection that extends from the top calender roll and means for changing the position of said movable bar.

10. In a device of the character set forth, an upwardly movable spring actuated trip bar which is associated with means for releasing the same to effect stoppage of the (letter roll of a carding machine, in combination with a hand lever which is flexibly connected with the trip'bar and pivotally with the frame of the carding machine; to provide means for depressing the trip bar.

JOHN B. SANTOS. 

